The heat transfer of the cryogenic liquid and water was studied.
研究低温液体-水相际传热问题。
It is very important to measure liquid density in cryogenic liquid rocket engine test.
在低温液体火箭发动机的试验中，对液体密度的测量是很重要的。
It is very important to measure liquid density in cryogenic liquid rocket engine test.
在低温液体火箭发动机的试验中，对液体密度的测量是很重要的。
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